similar to: subqueries in sqlQuery function (package RODBC)

Hi to all. I have a problem to connect to an Excel database using RODBC. Namely, I am using 64-bit R 2.14.0, under Windows 7 and I tried following: library(RODBC) > channel <- odbcConnectExcel("results.xlsx") Error in odbcConnectExcel("results.xlsx") : odbcConnectExcel is only usable with 32-bit Windows # ok this is clear why it doesn't work > channel

Hi R-help, I am trying to find a way to select five highest values in data frame according some variable. I will demonstrate: c X1 X2 1 1 1 2 1 2 3 1 3 4 1 4 5 1 5 6 1 6 7 1 7 8 1 8 9 1 9 10 1 10 11 2 11 12 2 12 13 2 13 14 2 14 15 2 15 16 2 16 17 2 17 18 2 18 19 2 19 20 2 20 21 2 21 22 2 22 23 2 23 24 2 24 25 2 25 So I

Hello, I''ve tried to set up a class with acts_as_list with a scope argument that restricts a list to records with the same foreign key. For example : database : CREATE TABLE `families` ( `id` int(11) NOT NULL auto_increment, `name` varchar(255) NOT NULL default '''', PRIMARY KEY (`id`) ) ENGINE=MyISAM DEFAULT CHARSET=utf8 AUTO_INCREMENT=3 ; INSERT INTO

Hi all. I would like to highlight overlapping regions of two densities and I could not find a way to do it. Here is the sample code: myd <- c(2,4,5, 4,3,2,2,3,3,3,2,3,3,4,2,4,3,3,3,2,2.5, 2, 3,3, 2.3, 3, 3, 2, 3) myd1 <- myd-2 plot(range(density(myd)$x, density(myd1)$x), range(density(myd)$y, density(myd1)$y), type = "n") lines(density(myd), col=1, lwd=4)

Hi R users, I have following data frame df<-data.frame(q1=c(0,0,33.33,"check"),q2=c(0,33.33,"check",9.156), q3=c("check","check",25,100),q4=c(7.123,35,100,"check")) and i would like to replace every element that is less then 10 with . (dot) in order to obtain this: q1 q2 q3 q4 1 . . check . 2 . 33.33 check 35

Hi everybody. I have list like this: l<-list(data.frame(q1=c(1,2,"check"),q2=c(3,"check",5)), data.frame(q1=c("check",1),q2=c(4,5))) names(l)<-c("A","B") rownames(l[[1]])<-c("aa","bb","cc") rownames(l[[2]])<-c("aa","bb") Every object has the same number of columns but different number

I have a categorical variable in a dataframe similar to the following... cat 1 1 3 2 4 I need to convert it to 4 dichotemous variables for each observations like... cat1 cat2 cat3 cat4 1 0 0 0 1 0 0 0 0 0 1 0 0 1 0 0 0 0 0 1 Thanks in advance! Shane

Hi all. I tried to calculate sum of deviations from the weighted mean and i didn't get what i expected - 0. Here is an example: > wt <- c(10,25,38,22,5) > x <- 6:10 > wm <- weighted.mean(x,wt) > (x-wm)*wt [1] -18.70 -21.75 4.94 24.86 10.65 > sum((x-wm)*wt) [1] -1.24345e-14 With simple mean I got 0: > sum(x-mean(x)) [1] 0 Could someone explain me why we

Hi useRs. Does anybody know if there is some function that creates speedometer chart in R? Or if anybody has proposals where to start looking and which functions I can modify in order to create this kind of chart? Thanks for any help Andrija [[alternative HTML version deleted]]

Hello R user, I have following data frame: df=data.frame(id=c(1:10),strata=rep(c(1,2),c(5,5)),y=c( 10,12,10,NA,15,70,NA,NA,55,100),x=c(3,4,5,7,4,10,12,8,3,15)) and I would like to replace NA's with: instead of first NA tapply(na.exclude(df)$y,na.exclude(df)$strata,sum)[1]* *7 */tapply(na.exclude(df)$x,na.exclude(df)$strata,sum)[1] where 7 is the value of x (id=4) in strata 1 where y=NA

Hello List, I am having trouble finding the command for my problem. I have two arrays x and y. now i would like to compare the values of x and y and then get the index of x which is exactly or approximately equal(+/- some value ) to the values in y. x <- runif(100,min=0,max=5) y <- runif(10,min=0,max=5) the threshold value(+/-) value can vary. for this example lets take it to be .5

Hi, I have a query which I would like to translate into R, but I do not know how to do it in an easy way. Assume a data frame has columns A, B and C: A B C 1 1 3 1 1 4 1 1 5 1 2 6 1 2 7 1 3 8 The query is as follows: select A, B, count(*) from data.frame group by A, B order by count(*) desc How do I translate this into R statements in such way that the result is a data frame structured as

Hi R users. I have a problem with function strata in sampling packages. > st0 = strata(dom, stratanames="stratas", size=sample.size, method="systematic",pik, FALSE) Error in sort.list(y) : 'x' must be atomic for 'sort.list' Have you called 'sort' on a list? In previous version of R 2.9.1 and previous version of package sampling this code worked

Hi R users, could someone help me to find out which formulas, for standard error calculation, are used in following example: a=data.frame(weights=rep(c(10,1),c(4,1)),fpc=rep(41,5),uk=rep(1,5)) srs<-svydesign(id=~1, weights=~weights, data=a) srs1<-svydesign(id=~1, weights=~weights,fpc=~fpc, data=a) svytotal(~uk,srs) total SE uk 41 9 svytotal(~uk,srs1) total SE uk 41

Hi all. I found one situation, on my OS - Windows 7, where R stops working with reported error R for Windows GUI front-end has stopped working. Here is the example: library(plyr) DF <- data.frame(x=c(1:3, NA, NA), y=factor(sample(1:3,5,rep=T),levels=1:5)) DF[DF$x<3, ] #this works properly ddply(DF, .(y), nrow, .drop=FALSE) #this causes the problem ddply(DF[DF$x<3, ], .(y), nrow,

Olly Betts writes: > On Thu, Dec 29, 2016 at 07:21:41PM +0100, Jean-Francois Dockes wrote: > > Xapian 1.2 supports a query like: > > > > (A OR B) NEAR (C OR D) > > > > and distributes the factors to create something like: > > > > (A NEAR 2 C) OR (B NEAR 2 C) OR (B NEAR 2 C) OR (A NEAR 2 C) > > > > Xapian 1.4 rejects such

Olly Betts writes: > On Wed, Jan 04, 2017 at 07:29:58AM +0100, Jean-Francois Dockes wrote: > > Olly Betts writes: > > > The ticket has a patch which attempts to handle the OR case (which seems > > > to be the part you actually care about) but this suffers from issues with > > > object lifetimes which get a bit involved in the details. Since there >

Olly Betts writes: > On Thu, Jan 12, 2017 at 07:53:21PM +0100, Jean-Francois Dockes wrote: > > > Recoll also supports multi-word synonyms which could potentially > > generate PHRASE subqueries inside NEAR queries, but this > > understandably already did not work with 1.2, so the multi-word > > expansions are only used when proximity is not involved (by the way,

So I just setup my Icecast server on my unix box but I am having trouble with Nicecast in trying to send a stream to it. Nicecast connects to the server fine when I leave the mountpoint setting blank but when I put something in there, it fails to login. Regardless, neither alternative produces a working stream. Although, when I don?t enter a mountpoint and the broadcast is playing, my icecast

Hi R users! Does anyone know command similar to cbind for adding a column to a object of the list. For example on this list: > c1 $`1` x11 x22 1 1 1 2 1 2 3 1 3 4 1 4 5 1 5 $`2` x11 x22 6 2 6 7 2 7 8 2 8 9 2 9 10 2 10 11 2 11 i would like to add column, named random created with - runif(5)-, to the first object in order to obtain something like this: > c1 $`1` x11 x22 random 1 1 1